期刊
JOURNAL OF POWER SOURCES
卷 196, 期 22, 页码 9780-9785出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2011.08.012
关键词
Nanocone-arrays; Nanostructure; Tin; Lithium-ion battery
资金
- National Natural Science Foundation of China [50954005, 51074011]
- National Basic Research Program of China [2007CB936502]
- National 863 Program [2006AA03Z230, 2008AA03Z208]
- China Ministry of Education
- Innovation Foundation of BUAA for PhD Graduates
The electrodeposited nickel nanocone-arrays without any template are introduced to Sn-based anode materials as current collector for lithium ion battery. Nickel nanocone-arrays are tightly wedged in the electrodeposited Sn film, and thereby enhance the interfacial strength between active materials and substrate. Furthermore, annealing is conducted to form Sn-Ni alloy, in which Ni renders an inactive matrix to buffer volume change during cyclic lithiation/delithiation. The nanocone-arrays supported Sn-Ni alloy anode shows satisfactory Li+ storage properties with the first reversible capacity of 807 mAh g(-1). The charge capacity for the 50th cycle is 678 mAh g(-1), delivering good retention rate of 99.6% per cycle. These improved performances of nickel nanocone-arrays supported Sn-Ni alloy anodes indicate the potential of their application as electrode materials for high performance energy storage. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据